headed for campaign stops in the battleground state of ohio, a crucial state in his fight to win re-election. the president was in town here for less than 24 hours, enough time to attend three fund-raisers with a total net of roughly $4 million for his campaign. and also an opportunity to fire up his supporters, to remind them that this race is not over, especially now that he's slipping in the polls, after what was regarded as a poor performance during last week's debate with governor mitt romney. during one fund-raiser last night, the bill graham civic auditorium in san francisco, the president called on his backers to be honest obsessive over the next 28 days, asking them to knock on doors and call on friends and battleground states, and for anyone who questions his drive and dedication, after seeing him debate, he assured the crowd that he very much intends to win this election. he also attacked his opponents' own performance during last week's debate. >> a few nights ago, suddenly, a guy pretending to be mitt romney stood on a stage next to me and said he's changing his plan. he's just